Stack walking performance issue

[Aleksey Shipilev]

On 3/18/19 10:32 PM, Amir Hadadi wrote:
> If anyone is willing to build an Open JDK with this fix I can give it a spin.

I think you'd want to build the OpenJDK on your target system, that would avoid compatibility woes
(for example, glibc and other library dependencies). Short example:

 $ hg clone http://hg.openjdk.java.net/jdk-updates/jdk11u zgc-jdk11u
 $ cd zgc-jdk11u
 $ ./configure # this might fail the first time, install dependencies, etc
 $ make images
 <should complete fine>

Add call to ResolvedMethodTable::unlink() to ZHeap::mark_end. You'd probably need to include
prims/resolvedMethodTable.hpp too.

 $ make images
 $ build/linux-x86_64-normal-server-release/images/jdk/bin/java

-Aleksey